I am planing to move from Snow Leopard to Lion..but there are some question that i would like to check before i go for it. I using iMac 27" and i have two DVDs One is MacOSX Snow Leopard install disk Other is application disk I already have MacOSX 10.6.8 on computer installed and iTunes are with IOS 5.0 Now if i install Lion i would like to know if my applications that comes with iMac will stay on my computer or all applications will be gone??? If anyone know answer on this question please help... Some of application that came togather with iMac are iChat iCal Front Row Photo Booth iPhoto iMovie GarageBand iDVD iWeb and many other that are not so important. I did test clean installation of Lion on MBP but when i do so and try to use application DVD i cannot install any apps from that DVD...Does anyone know what is issue ????